Production of emulsifiable polyisocyanate for use in aqueous coating material or adhesive, involves reacting di-isocyanate with polyether-alcohol and mixing the product with aliphatic polyisocyanate and allophanatisation catalyst

    公开(公告)号:DE10350242A1

    公开(公告)日:2005-05-19

    申请号:DE10350242

    申请日:2003-10-27

    Applicant: BASF AG

    Abstract: A method for the production of water-emulsifiable polyisocyanate preparations by (A) reacting di-isocyanates with polyether-alcohols to form products (E) with dispersant properties and then (B) mixing (E) with aliphatic polyisocyanates, involves forming allophanate groups by carrying out stage (B) in presence of an allophanatisation catalyst. A two-stage method for the production of water-emulsifiable polyisocyanate preparations (I) involves (A) making a reaction product (E) with dispersant properties from di-isocyanate(s) selected from tetramethylene-, hexamethylene- or dodecamethylene-di-isocyanate, 1,4-di-isocyanatocyclohexane, 4,4-di-(isocyanatocyclohexyl)-methane, trimethylhexanedi-isocyanate, tetramethylhexanedi-isocyanate, isophoronedi-isocyanate, 2,4- or 2,6-toluenedi-isocyanate, tetramethylxylylenedi-isocyanate, p-xylylenedi-isocyanate and/or 2,4- or 4,4-di-isocyanatodiphenylmethane together with mono- or poly-hydric poly(2-4C alkylene-ether-alcohols) and then (B) mixing (E) with aliphatic polyisocyanate(s) with an average NCO functionality of 2.5-3.5. Stage (B) is carried out in presence of an allophanatisation catalyst under suitable conditions for the formation of allophanate groups between (E) and the polyisocyanate. An independent claim is also included for water-emulsifiable polyisocyanate preparations (I) obtained by this method.

    67.
    发明专利
    未知

    公开(公告)号:ES2184317T3

    公开(公告)日:2003-04-01

    申请号:ES98941365

    申请日:1998-07-20

    Applicant: BASF AG

    Abstract: Latent-crosslinking aqueous polyurethane dispersions comprisingI) a disperse phase (P.I) comprisingIa) a polyurethane (Ia) which carries carbodiimide groups in addition to hydrophilic groups which make it dispersible in water but carries essentially no carboxyl groups orIb) a physical mixture ofIbi) a polyurethane (Ibi) which carries hydrophilic groups which make it dispersible in water but carries essentially no carbodiimide or carboxyl groups andIbii) a carbodiimide (Ibii) which carries essentially no hydrophilic groups which make it dispersible in water, andII) a disperse phase (P.II) comprising another polymer (II) which carries carboxyl groups and essentially no carbodiimide groups.

    68.
    发明专利
    未知

    公开(公告)号:DE10100220A1

    公开(公告)日:2002-07-11

    申请号:DE10100220

    申请日:2001-01-04

    Applicant: BASF AG

    Abstract: The invention relates to derived timber products consisting of wood parts which are glued by means of an adhesive composition, and such adhesive compositions. Said adhesive composition contains a prepolymer (prepolymer P) carrying isocyanate groups and derived from (A) a constituent A containing (A1) between 25 and 100 wt. % of a triglyceride having a plurality of reactive groups which can react with isocyanate groups in an addition reaction (triglycerides A1), and (A2) between 0 and 75 wt. % of another compound having at least one reactive group which can react with isocyanate groups in an addition reaction (constituent A2); and (B) a constituent B containing a polyisocyanate, optionally standard auxiliary and addition agents, optionally an activator, and optionally a filler material.

    70.
    发明专利
    未知

    公开(公告)号:NO20015102A

    公开(公告)日:2002-04-22

    申请号:NO20015102

    申请日:2001-10-19

    Applicant: BASF AG

    CPC classification number: C08G18/4812 C08G18/12 C08L77/00 C09J175/04

    Abstract: Adhesive composition contains urethane prepolymer with specified urea content and fibrous filler. Adhesive composition contains up to 99.9 wt.% prepolymer (I) with urethane groups and a urea content of 0.05-1 wt.% (calculated as NH-CO-NH), 0.1-20 wt.% fibrous filler, 0-20 wt.% usual additives and 0-10 wt.% activator. (I) is derived from component A containing (A1) diol(s) and/or polyol(s), (A2) organic compound(s) containing primary and/or secondary amino groups and/or water and optionally (A3) other compound(s) with functional groups capable of an addition reaction with isocyanate groups and component B containing compound(s) with polyisocyanate groups. Independent claims are also included for: (a) the production of an adhesive composition by bringing the components into contact with one another; (b) composites, comprising substrate(s) and the adhesive composition; (c) above-ground, underground, ship, vehicle or aircraft structures containing the adhesive composition or composite.

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